Re: removing the .IX macro from the ms package in 1.23 breaks old documents

[Tadziu Hoffmann]

> If we establish that this is a bug [...]
> But I need evidence of that, and as yet I don't have it.

I don't have any evidence other than

  a) empirically, it fixes Joerg's problem.
  b) logically, it is necessary, as the leaders and the
     pagenumber are attached to the end of the line, so one
     needs to guarantee that there is enough space for them.
  c) aesthetically, you don't want the text in the TOC to
     extend all the way to the right margin, so that the
     pagenumbers stand out (literally and figuratively).
     That means that the margin for the text (= 8n) should
     be larger than the space for the pagenumbers
     (= TC-MARGIN = \w'000').

Of course the macro also needs to be upgraded to properly
format multi-line TOC entries, but that's a different problem.